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The
SIP provides a mechanism to represent common header field names in an abbreviated form. This may be useful when messages are too large to be carried on the transport available to it. A compact form may be substituted for the longer form of a header field name at any time without changing the semantics of the message. A header field name may appear in both long and short forms within the same message. A compact form of some common header field names is also defined for use when overall message size is an issue. Any headers marked with an alternate like: ' | ' indicates the long form or the short form of the header. In order to maintain backward capability, as of 4.1.6R0 and 4.2.4R0 releases, the
The
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SIP Header List
Key: = Supported |
A
Noprint | |
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visible | true |
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SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
Accept |
Accept-Contact|a |
Accept-Language | 4.0.0 | ||
Accept-Resource-Priority |
Alert-Info |
Allow |
Also |
Anonymity |
Authorization |
C
Noprint | |
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|
visible | true |
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SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
CallConnectId |
Call-ID|i |
Call-Info |
Contact|m |
Content-Disposition |
Content-Type|c |
Content-Encoding|e |
Content-Length|l |
CSeq |
D
Noprint | |
---|---|
|
visible | true |
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SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
Diversion |
E
Noprint | |
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|
visible | true |
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SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
Error-Info |
Event|o |
Expires |
F
noprintClick here to view/hide table:
Toggle Cloak
visible | true |
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SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
Feature-Caps | 5.1.0 | ||
Flow-Timer | 4.0.0 | ||
From|f |
G
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Toggle Cloak
visible | true |
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SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
Geolocation |
Geolocation-Error |
Geolocation-Routing |
H
visible | true |
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SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
History-Info |
I
Noprint | |
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|
visible | true |
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SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
Identity | 7.2.0 | ||
Info-Package | 5.1.0 |
M
Noprint | |
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|
visible | true |
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SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
Max-Forwards |
MIME-Version |
Min-Expires |
Min-SE |
O
Noprint | |
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|
visible | true |
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SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
Overload-Control |
P
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Toggle Cloak
visible | true |
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SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
P-Access-Network-Info |
P-Area-Info |
P-Asserted-Identity |
P-Associated-URI |
P-Attestation-Indicator | 7.2.0 | ||
Path |
P-Asserted-Service | 5.1.0 | ||
P-Called-Party-ID |
P-Carrier-Info |
P-CDR-Info |
P-Charge-Info |
P-Charging-Function-Addresses |
P-Charging-Vector |
P-ChgMsg-Info |
P-Com.Session-Info | 5.1.0 | ||
P-DCS-Billing-Info | 4.0.0 | ||
P-DCS-LAES |
P-Early-Media |
"P-K-Adn" |
P-K-Cfl |
P-K-Cfo |
P-Orig-CA |
P-Origination-ID | 7.2.0 | ||
P-Preferred-Identity |
P-Profile-Key | 5.1.0 | ||
Privacy |
Proxy-Authenticate |
Proxy-Authorization |
Proxy-Require |
P-Sig-Info |
P-Svc-Info |
P-Term-CA |
P-Visited-Network-ID |
R
Noprint | |
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visible | true |
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SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
RAck |
Reason |
Record-Route |
Recv-Info | 5.1.0 | ||
Referred-By|b |
Refer-Sub | 4.0.0 | ||
Refer-To|r |
Remote-Party-ID |
Replaces |
Reply-To |
Requested-By |
Require |
Resource-Priority |
Retry-After |
Route |
RSeq |
S
visible | true |
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SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
Security-Client |
Security-Server |
Security-Verify |
Server | 4.0.0 | ||
Service-Route |
Session-Expires|x |
Sip-Etag | 4.0.0 | ||
Sip-If-Match | 4.0.0 | ||
Subscription-State |
Supported|k |
Suppress-If-Match | 4.0.0 |
T
visible | true |
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SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
Target-Dialog |
Timestamp |
To|t |
U
Noprint | |
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visible | true |
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SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
UnSupported |
User-Agent | 4.0.0 | ||
User-to-User |
V
Noprint | |
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visible | true |
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SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
Via|v |
W
noprintClick here to view/hide table:
Toggle Cloak
visible | true |
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SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
Warning | 4.0.0 | ||
WWW-Authenticate |
X
Noprint | |
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visible | true |
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SIP Header | Supported Feature | Release Added (since 3.1.7) | |
---|---|---|---|
Send | Receive and Process | ||
X-ATP |
X-AUT |
X-BCI |
X-CALLING-NUM |
X-Carrier-Info |
X-CHGDelay |
X-CHGInfo |
X-CONTRACT-ADDR |
X-EMG |
X-FCI |
X-FWDORIG-NUM |
X-GENERIC-NUM |
X-ISUPEvent |
X-ISUPMtype |
X-MS-MediaPath | 8.2 | ||
X-MS-UserLocation | 8.2 | ||
X-NOCI |
X-OBCI |
X-ORIGCLD-NUM |
X-REDBWDINF |
X-REDCAP |
X-REDCNT |
X-REDFWDINF |
X-Service-Indicator |
X-Service-Type |
X-TMR |
X-USI |
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